-<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>The Altus Metrum System</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="book" title="The Altus Metrum System"><div class="titlepage"><div><div><h1 class="title"><a name="id2
614605"></a>The Altus Metrum System</h1></div><div><h2 class="subtitle">An Owner's Manual for TeleMetrum and TeleDongle Devices</h2></div><div><div class="author"><h3 class="author"><span class="firstname">Bdale</span> <span class="surname">Garbee</span></h3></div></div><div><div class="author"><h3 class="author"><span class="firstname">Keith</span> <span class="surname">Packard</span></h3></div></div><div><div class="author"><h3 class="author"><span class="firstname">Bob</span> <span class="surname">Finch</span></h3></div></div><div><div class="author"><h3 class="author"><span class="firstname">Anthony</span> <span class="surname">Towns</span></h3></div></div><div><p class="copyright">Copyright © 2010 Bdale Garbee and Keith Packard</p></div><div><div class="legalnotice" title="Legal Notice"><a name="id2890104"></a><p>
+<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>The Altus Metrum System</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="book" title="The Altus Metrum System"><div class="titlepage"><div><div><h1 class="title"><a name="id2
717824"></a>The Altus Metrum System</h1></div><div><h2 class="subtitle">An Owner's Manual for TeleMetrum and TeleDongle Devices</h2></div><div><div class="author"><h3 class="author"><span class="firstname">Bdale</span> <span class="surname">Garbee</span></h3></div></div><div><div class="author"><h3 class="author"><span class="firstname">Keith</span> <span class="surname">Packard</span></h3></div></div><div><div class="author"><h3 class="author"><span class="firstname">Bob</span> <span class="surname">Finch</span></h3></div></div><div><div class="author"><h3 class="author"><span class="firstname">Anthony</span> <span class="surname">Towns</span></h3></div></div><div><p class="copyright">Copyright © 2010 Bdale Garbee and Keith Packard</p></div><div><div class="legalnotice" title="Legal Notice"><a name="id2993323"></a><p>
This document is released under the terms of the
<a class="ulink" href="http://creativecommons.org/licenses/by-sa/3.0/" target="_top">
Creative Commons ShareAlike 3.0
</a>
license.
- </p></div></div><div><div class="revhistory"><table border="1" width="100%" summary="Revision history"><tr><th align="left" valign="top" colspan="2"><b>Revision History</b></th></tr><tr><td align="left">Revision 0.8</td><td align="left">24 November 2010</td></tr><tr><td align="left" colspan="2">Updated for software version 0.8 </td></tr></table></div></div></div><hr></div><div class="acknowledgements" title="Acknowledgements"><div class="titlepage"><div><div><h2 class="title"><a name="id2881651"></a>Acknowledgements</h2></div></div></div>
+ </p></div></div><div><div class="revhistory"><table border="1" width="100%" summary="Revision history"><tr><th align="left" valign="top" colspan="2"><b>Revision History</b></th></tr><tr><td align="left">Revision 0.8</td><td align="left">24 November 2010</td></tr><tr><td align="left" colspan="2">Updated for software version 0.8 </td></tr></table></div></div></div><hr></div><div class="acknowledgements" title="Acknowledgements"><div class="titlepage"><div><div><h2 class="title"><a name="id2984870"></a>Acknowledgements</h2></div></div></div>
<p>
Thanks to Bob Finch, W9YA, NAR 12965, TRA 12350 for writing "The
Mere-Mortals Quick Start/Usage Guide to the Altus Metrum Starter
NAR #88757, TRA #12200<br>
</p></div><p>
</p>
- </div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="chapter"><a href="#id2
885386">1. Introduction and Overview</a></span></dt><dt><span class="chapter"><a href="#id2859162">2. Getting Started</a></span></dt><dd><dl><dt><span class="section"><a href="#id2898193">FAQ</a></span></dt></dl></dd><dt><span class="chapter"><a href="#id2885299">3. Specifications</a></span></dt><dt><span class="chapter"><a href="#id2913152">4. Handling Precautions</a></span></dt><dt><span class="chapter"><a href="#id2885530">5. Hardware Overview</a></span></dt><dt><span class="chapter"><a href="#id2891396">6. System Operation</a></span></dt><dd><dl><dt><span class="section"><a href="#id2894544">Firmware Modes </a></span></dt><dt><span class="section"><a href="#id2896255">GPS </a></span></dt><dt><span class="section"><a href="#id2910659">Ground Testing </a></span></dt><dt><span class="section"><a href="#id2910657">Radio Link </a></span></dt><dt><span class="section"><a href="#id2881378">Configurable Parameters</a></span></dt><dd><dl><dt><span class="section"><a href="#id2901649">Radio Channel</a></span></dt><dt><span class="section"><a href="#id2892563">Apogee Delay</a></span></dt><dt><span class="section"><a href="#id2910369">Main Deployment Altitude</a></span></dt></dl></dd><dt><span class="section"><a href="#id2888998">Calibration</a></span></dt><dd><dl><dt><span class="section"><a href="#id2912720">Radio Frequency</a></span></dt><dt><span class="section"><a href="#id2902831">Accelerometer</a></span></dt></dl></dd><dt><span class="section"><a href="#id2911069">Updating Device Firmware</a></span></dt><dd><dl><dt><span class="section"><a href="#id2883968">Updating TeleMetrum Firmware</a></span></dt><dt><span class="section"><a href="#id2902772">Updating TeleDongle Firmware</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#id2899642">7. AltosUI</a></span></dt><dd><dl><dt><span class="section"><a href="#id2899920">Packet Command Mode</a></span></dt><dt><span class="section"><a href="#id2904966">Monitor Flight</a></span></dt><dd><dl><dt><span class="section"><a href="#id2899984">Launch Pad</a></span></dt><dt><span class="section"><a href="#id2894635">Ascent</a></span></dt><dt><span class="section"><a href="#id2901484">Descent</a></span></dt><dt><span class="section"><a href="#id2909977">Landed</a></span></dt><dt><span class="section"><a href="#id2891310">Site Map</a></span></dt></dl></dd><dt><span class="section"><a href="#id2895594">Save Flight Data</a></span></dt><dt><span class="section"><a href="#id2915779">Replay Flight</a></span></dt><dt><span class="section"><a href="#id2902601">Graph Data</a></span></dt><dt><span class="section"><a href="#id2897602">Export Data</a></span></dt><dd><dl><dt><span class="section"><a href="#id2904804">Comma Separated Value Format</a></span></dt><dt><span class="section"><a href="#id2908365">Keyhole Markup Language (for Google Earth)</a></span></dt></dl></dd><dt><span class="section"><a href="#id2899625">Configure TeleMetrum</a></span></dt><dd><dl><dt><span class="section"><a href="#id2888483">Main Deploy Altitude</a></span></dt><dt><span class="section"><a href="#id2882164">Apogee Delay</a></span></dt><dt><span class="section"><a href="#id2911615">Radio Channel</a></span></dt><dt><span class="section"><a href="#id2893190">Radio Calibration</a></span></dt><dt><span class="section"><a href="#id2891069">Callsign</a></span></dt></dl></dd><dt><span class="section"><a href="#id2891229">Configure AltosUI</a></span></dt><dd><dl><dt><span class="section"><a href="#id2877534">Voice Settings</a></span></dt><dt><span class="section"><a href="#id2915842">Log Directory</a></span></dt><dt><span class="section"><a href="#id2882642">Callsign</a></span></dt></dl></dd><dt><span class="section"><a href="#id2902517">Flash Image</a></span></dt><dt><span class="section"><a href="#id2900288">Fire Igniter</a></span></dt></dl></dd><dt><span class="chapter"><a href="#id2911085">8. Using Altus Metrum Products</a></span></dt><dd><dl><dt><span class="section"><a href="#id2898191">Being Legal</a></span></dt><dt><span class="section"><a href="#id2913004">In the Rocket</a></span></dt><dt><span class="section"><a href="#id2900884">On the Ground</a></span></dt><dt><span class="section"><a href="#id2902857">Data Analysis</a></span></dt><dt><span class="section"><a href="#id2900597">Future Plans</a></span></dt></dl></dd></dl></div><div class="chapter" title="Chapter 1. Introduction and Overview"><div class="titlepage"><div><div><h2 class="title"><a name="id2885386"></a>Chapter 1. Introduction and Overview</h2></div></div></div><p>
+ </div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="chapter"><a href="#id2
988605">1. Introduction and Overview</a></span></dt><dt><span class="chapter"><a href="#id2962381">2. Getting Started</a></span></dt><dd><dl><dt><span class="section"><a href="#id3001412">FAQ</a></span></dt></dl></dd><dt><span class="chapter"><a href="#id2988518">3. Specifications</a></span></dt><dt><span class="chapter"><a href="#id3016372">4. Handling Precautions</a></span></dt><dt><span class="chapter"><a href="#id2988750">5. Hardware Overview</a></span></dt><dt><span class="chapter"><a href="#id2994616">6. System Operation</a></span></dt><dd><dl><dt><span class="section"><a href="#id2997763">Firmware Modes </a></span></dt><dt><span class="section"><a href="#id2999475">GPS </a></span></dt><dt><span class="section"><a href="#id3013879">Ground Testing </a></span></dt><dt><span class="section"><a href="#id3013876">Radio Link </a></span></dt><dt><span class="section"><a href="#id2984597">Configurable Parameters</a></span></dt><dd><dl><dt><span class="section"><a href="#id3004868">Radio Channel</a></span></dt><dt><span class="section"><a href="#id2995782">Apogee Delay</a></span></dt><dt><span class="section"><a href="#id3013588">Main Deployment Altitude</a></span></dt></dl></dd><dt><span class="section"><a href="#id2992217">Calibration</a></span></dt><dd><dl><dt><span class="section"><a href="#id3015940">Radio Frequency</a></span></dt><dt><span class="section"><a href="#id3006050">Accelerometer</a></span></dt></dl></dd><dt><span class="section"><a href="#id3014288">Updating Device Firmware</a></span></dt><dd><dl><dt><span class="section"><a href="#id2987187">Updating TeleMetrum Firmware</a></span></dt><dt><span class="section"><a href="#id3005991">Updating TeleDongle Firmware</a></span></dt></dl></dd></dl></dd><dt><span class="chapter"><a href="#id3002861">7. AltosUI</a></span></dt><dd><dl><dt><span class="section"><a href="#id3003139">Packet Command Mode</a></span></dt><dt><span class="section"><a href="#id3008185">Monitor Flight</a></span></dt><dd><dl><dt><span class="section"><a href="#id3003203">Launch Pad</a></span></dt><dt><span class="section"><a href="#id2997854">Ascent</a></span></dt><dt><span class="section"><a href="#id3004703">Descent</a></span></dt><dt><span class="section"><a href="#id3013196">Landed</a></span></dt><dt><span class="section"><a href="#id2994529">Site Map</a></span></dt></dl></dd><dt><span class="section"><a href="#id2998813">Save Flight Data</a></span></dt><dt><span class="section"><a href="#id3018998">Replay Flight</a></span></dt><dt><span class="section"><a href="#id3005821">Graph Data</a></span></dt><dt><span class="section"><a href="#id3000821">Export Data</a></span></dt><dd><dl><dt><span class="section"><a href="#id3008023">Comma Separated Value Format</a></span></dt><dt><span class="section"><a href="#id3011584">Keyhole Markup Language (for Google Earth)</a></span></dt></dl></dd><dt><span class="section"><a href="#id3002844">Configure TeleMetrum</a></span></dt><dd><dl><dt><span class="section"><a href="#id2991702">Main Deploy Altitude</a></span></dt><dt><span class="section"><a href="#id2985384">Apogee Delay</a></span></dt><dt><span class="section"><a href="#id3014834">Radio Channel</a></span></dt><dt><span class="section"><a href="#id2996409">Radio Calibration</a></span></dt><dt><span class="section"><a href="#id2994288">Callsign</a></span></dt></dl></dd><dt><span class="section"><a href="#id2994448">Configure AltosUI</a></span></dt><dd><dl><dt><span class="section"><a href="#id2980753">Voice Settings</a></span></dt><dt><span class="section"><a href="#id3019061">Log Directory</a></span></dt><dt><span class="section"><a href="#id2985861">Callsign</a></span></dt></dl></dd><dt><span class="section"><a href="#id3005736">Flash Image</a></span></dt><dt><span class="section"><a href="#id3003508">Fire Igniter</a></span></dt></dl></dd><dt><span class="chapter"><a href="#id3014304">8. Using Altus Metrum Products</a></span></dt><dd><dl><dt><span class="section"><a href="#id3001410">Being Legal</a></span></dt><dt><span class="section"><a href="#id3016224">In the Rocket</a></span></dt><dt><span class="section"><a href="#id3004104">On the Ground</a></span></dt><dt><span class="section"><a href="#id3006076">Data Analysis</a></span></dt><dt><span class="section"><a href="#id3003816">Future Plans</a></span></dt></dl></dd></dl></div><div class="chapter" title="Chapter 1. Introduction and Overview"><div class="titlepage"><div><div><h2 class="title"><a name="id2988605"></a>Chapter 1. Introduction and Overview</h2></div></div></div><p>
Welcome to the Altus Metrum community! Our circuits and software reflect
our passion for both hobby rocketry and Free Software. We hope their
capabilities and performance will delight you in every way, but by
More products will be added to the Altus Metrum family over time, and
we currently envision that this will be a single, comprehensive manual
for the entire product family.
- </p></div><div class="chapter" title="Chapter 2. Getting Started"><div class="titlepage"><div><div><h2 class="title"><a name="id2
859162"></a>Chapter 2. Getting Started</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#id2898193">FAQ</a></span></dt></dl></div><p>
+ </p></div><div class="chapter" title="Chapter 2. Getting Started"><div class="titlepage"><div><div><h2 class="title"><a name="id2
962381"></a>Chapter 2. Getting Started</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#id3001412">FAQ</a></span></dt></dl></div><p>
The first thing to do after you check the inventory of parts in your
"starter kit" is to charge the battery by plugging it into the
corresponding socket of the TeleMetrum and then using the USB A to
the Log and Device menus. It has a wonderful display of the incoming
flight data and I am sure you will enjoy what it has to say to you
once you enable the voice output!
- </p><div class="section" title="FAQ"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2898193"></a>FAQ</h2></div></div></div><p>
+ </p><div class="section" title="FAQ"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3001412"></a>FAQ</h2></div></div></div><p>
The altimeter (TeleMetrum) seems to shut off when disconnected from the
computer. Make sure the battery is adequately charged. Remember the
unit will pull more power than the USB port can deliver before the
data after physically retrieving your TeleMetrum. Make sure to save
the on-board data after each flight, as the current firmware will
over-write any previous flight data during a new flight.
- </p></div></div><div class="chapter" title="Chapter 3. Specifications"><div class="titlepage"><div><div><h2 class="title"><a name="id2
885299"></a>Chapter 3. Specifications</h2></div></div></div><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>
+ </p></div></div><div class="chapter" title="Chapter 3. Specifications"><div class="titlepage"><div><div><h2 class="title"><a name="id2
988518"></a>Chapter 3. Specifications</h2></div></div></div><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>
Recording altimeter for model rocketry.
</p></li><li class="listitem"><p>
Supports dual deployment (can fire 2 ejection charges).
battery if needed.
</p></li><li class="listitem"><p>
2.75 x 1 inch board designed to fit inside 29mm airframe coupler tube.
- </p></li></ul></div></div><div class="chapter" title="Chapter 4. Handling Precautions"><div class="titlepage"><div><div><h2 class="title"><a name="id
2913152"></a>Chapter 4. Handling Precautions</h2></div></div></div><p>
+ </p></li></ul></div></div><div class="chapter" title="Chapter 4. Handling Precautions"><div class="titlepage"><div><div><h2 class="title"><a name="id
3016372"></a>Chapter 4. Handling Precautions</h2></div></div></div><p>
TeleMetrum is a sophisticated electronic device. When handled gently and
properly installed in an airframe, it will deliver impressive results.
However, like all electronic devices, there are some precautions you
</p><p>
As with all other rocketry electronics, TeleMetrum must be protected
from exposure to corrosive motor exhaust and ejection charge gasses.
- </p></div><div class="chapter" title="Chapter 5. Hardware Overview"><div class="titlepage"><div><div><h2 class="title"><a name="id2
885530"></a>Chapter 5. Hardware Overview</h2></div></div></div><p>
+ </p></div><div class="chapter" title="Chapter 5. Hardware Overview"><div class="titlepage"><div><div><h2 class="title"><a name="id2
988750"></a>Chapter 5. Hardware Overview</h2></div></div></div><p>
TeleMetrum is a 1 inch by 2.75 inch circuit board. It was designed to
fit inside coupler for 29mm airframe tubing, but using it in a tube that
small in diameter may require some creativity in mounting and wiring
TeleMetrum with an SMA connector for the UHF antenna connection, and
you can unplug the integrated GPS antenna and select an appropriate
off-board GPS antenna with cable terminating in a U.FL connector.
- </p></div><div class="chapter" title="Chapter 6. System Operation"><div class="titlepage"><div><div><h2 class="title"><a name="id2
891396"></a>Chapter 6. System Operation</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#id2894544">Firmware Modes </a></span></dt><dt><span class="section"><a href="#id2896255">GPS </a></span></dt><dt><span class="section"><a href="#id2910659">Ground Testing </a></span></dt><dt><span class="section"><a href="#id2910657">Radio Link </a></span></dt><dt><span class="section"><a href="#id2881378">Configurable Parameters</a></span></dt><dd><dl><dt><span class="section"><a href="#id2901649">Radio Channel</a></span></dt><dt><span class="section"><a href="#id2892563">Apogee Delay</a></span></dt><dt><span class="section"><a href="#id2910369">Main Deployment Altitude</a></span></dt></dl></dd><dt><span class="section"><a href="#id2888998">Calibration</a></span></dt><dd><dl><dt><span class="section"><a href="#id2912720">Radio Frequency</a></span></dt><dt><span class="section"><a href="#id2902831">Accelerometer</a></span></dt></dl></dd><dt><span class="section"><a href="#id2911069">Updating Device Firmware</a></span></dt><dd><dl><dt><span class="section"><a href="#id2883968">Updating TeleMetrum Firmware</a></span></dt><dt><span class="section"><a href="#id2902772">Updating TeleDongle Firmware</a></span></dt></dl></dd></dl></div><div class="section" title="Firmware Modes"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2894544"></a>Firmware Modes </h2></div></div></div><p>
+ </p></div><div class="chapter" title="Chapter 6. System Operation"><div class="titlepage"><div><div><h2 class="title"><a name="id2
994616"></a>Chapter 6. System Operation</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#id2997763">Firmware Modes </a></span></dt><dt><span class="section"><a href="#id2999475">GPS </a></span></dt><dt><span class="section"><a href="#id3013879">Ground Testing </a></span></dt><dt><span class="section"><a href="#id3013876">Radio Link </a></span></dt><dt><span class="section"><a href="#id2984597">Configurable Parameters</a></span></dt><dd><dl><dt><span class="section"><a href="#id3004868">Radio Channel</a></span></dt><dt><span class="section"><a href="#id2995782">Apogee Delay</a></span></dt><dt><span class="section"><a href="#id3013588">Main Deployment Altitude</a></span></dt></dl></dd><dt><span class="section"><a href="#id2992217">Calibration</a></span></dt><dd><dl><dt><span class="section"><a href="#id3015940">Radio Frequency</a></span></dt><dt><span class="section"><a href="#id3006050">Accelerometer</a></span></dt></dl></dd><dt><span class="section"><a href="#id3014288">Updating Device Firmware</a></span></dt><dd><dl><dt><span class="section"><a href="#id2987187">Updating TeleMetrum Firmware</a></span></dt><dt><span class="section"><a href="#id3005991">Updating TeleDongle Firmware</a></span></dt></dl></dd></dl></div><div class="section" title="Firmware Modes"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2997763"></a>Firmware Modes </h2></div></div></div><p>
The AltOS firmware build for TeleMetrum has two fundamental modes,
"idle" and "flight". Which of these modes the firmware operates in
is determined by the orientation of the rocket (well, actually the
rickety step-ladder or hanging off the side of a launch tower with
a screw-driver trying to turn on your avionics before installing
igniters!
- </p></div><div class="section" title="GPS"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2
896255"></a>GPS </h2></div></div></div><p>
+ </p></div><div class="section" title="GPS"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2
999475"></a>GPS </h2></div></div></div><p>
TeleMetrum includes a complete GPS receiver. See a later section for
a brief explanation of how GPS works that will help you understand
the information in the telemetry stream. The bottom line is that
is turned back on, the GPS system should lock very quickly, typically
long before igniter installation and return to the flight line are
complete.
- </p></div><div class="section" title="Ground Testing"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2910659"></a>Ground Testing </h2></div></div></div><p>
+ </p></div><div class="section" title="Ground Testing"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3013879"></a>Ground Testing </h2></div></div></div><p>
An important aspect of preparing a rocket using electronic deployment
for flight is ground testing the recovery system. Thanks
to the bi-directional RF link central to the Altus Metrum system,
the board from firing a charge. The command to fire the apogee
drogue charge is 'i DoIt drogue' and the command to fire the main
charge is 'i DoIt main'.
- </p></div><div class="section" title="Radio Link"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2910657"></a>Radio Link </h2></div></div></div><p>
+ </p></div><div class="section" title="Radio Link"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3013876"></a>Radio Link </h2></div></div></div><p>
The chip our boards are based on incorporates an RF transceiver, but
it's not a full duplex system... each end can only be transmitting or
receiving at any given moment. So we had to decide how to manage the
the ground. We hope to fly boards to higher altitudes soon, and would
of course appreciate customer feedback on performance in higher
altitude flights!
- </p></div><div class="section" title="Configurable Parameters"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2
881378"></a>Configurable Parameters</h2></div></div></div><p>
+ </p></div><div class="section" title="Configurable Parameters"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2
984597"></a>Configurable Parameters</h2></div></div></div><p>
Configuring a TeleMetrum board for flight is very simple. Because we
have both acceleration and pressure sensors, there is no need to set
a "mach delay", for example. The few configurable parameters can all
be set using a simple terminal program over the USB port or RF link
via TeleDongle.
- </p><div class="section" title="Radio Channel"><div class="titlepage"><div><div><h3 class="title"><a name="id
2901649"></a>Radio Channel</h3></div></div></div><p>
+ </p><div class="section" title="Radio Channel"><div class="titlepage"><div><div><h3 class="title"><a name="id
3004868"></a>Radio Channel</h3></div></div></div><p>
Our firmware supports 10 channels. The default channel 0 corresponds
to a center frequency of 434.550 Mhz, and channels are spaced every
100 khz. Thus, channel 1 is 434.650 Mhz, and channel 9 is 435.550 Mhz.
As with all 'c' sub-commands, follow this with a 'c w' to write the
change to the parameter block in the on-board DataFlash chip on
your TeleMetrum board if you want the change to stay in place across reboots.
- </p></div><div class="section" title="Apogee Delay"><div class="titlepage"><div><div><h3 class="title"><a name="id2
892563"></a>Apogee Delay</h3></div></div></div><p>
+ </p></div><div class="section" title="Apogee Delay"><div class="titlepage"><div><div><h3 class="title"><a name="id2
995782"></a>Apogee Delay</h3></div></div></div><p>
Apogee delay is the number of seconds after TeleMetrum detects flight
apogee that the drogue charge should be fired. In most cases, this
should be left at the default of 0. However, if you are flying
seconds later to avoid any chance of both charges firing
simultaneously. We've flown several airframes this way quite happily,
including Keith's successful L3 cert.
- </p></div><div class="section" title="Main Deployment Altitude"><div class="titlepage"><div><div><h3 class="title"><a name="id
2910369"></a>Main Deployment Altitude</h3></div></div></div><p>
+ </p></div><div class="section" title="Main Deployment Altitude"><div class="titlepage"><div><div><h3 class="title"><a name="id
3013588"></a>Main Deployment Altitude</h3></div></div></div><p>
By default, TeleMetrum will fire the main deployment charge at an
elevation of 250 meters (about 820 feet) above ground. We think this
is a good elevation for most airframes, but feel free to change this
To set the main deployment altitude, use the 'c m' command.
As with all 'c' sub-commands, follow this with a 'c w' to write the
change to the parameter block in the on-board DataFlash chip.
- </p></div></div><div class="section" title="Calibration"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2
888998"></a>Calibration</h2></div></div></div><p>
+ </p></div></div><div class="section" title="Calibration"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2
992217"></a>Calibration</h2></div></div></div><p>
There are only two calibrations required for a TeleMetrum board, and
only one for TeleDongle.
- </p><div class="section" title="Radio Frequency"><div class="titlepage"><div><div><h3 class="title"><a name="id
2912720"></a>Radio Frequency</h3></div></div></div><p>
+ </p><div class="section" title="Radio Frequency"><div class="titlepage"><div><div><h3 class="title"><a name="id
3015940"></a>Radio Frequency</h3></div></div></div><p>
The radio frequency is synthesized from a clock based on the 48 Mhz
crystal on the board. The actual frequency of this oscillator must be
measured to generate a calibration constant. While our GFSK modulation
within a few tens of Hertz of the intended frequency.
As with all 'c' sub-commands, follow this with a 'c w' to write the
change to the parameter block in the on-board DataFlash chip.
- </p></div><div class="section" title="Accelerometer"><div class="titlepage"><div><div><h3 class="title"><a name="id
2902831"></a>Accelerometer</h3></div></div></div><p>
+ </p></div><div class="section" title="Accelerometer"><div class="titlepage"><div><div><h3 class="title"><a name="id
3006050"></a>Accelerometer</h3></div></div></div><p>
The accelerometer we use has its own 5 volt power supply and
the output must be passed through a resistive voltage divider to match
the input of our 3.3 volt ADC. This means that unlike the barometric
and use a small screwdriver or similar to short the two pins closest
to the index post on the 4-pin end of the programming cable, and
power up the board. It should come up in 'idle mode' (two beeps).
- </p></div></div><div class="section" title="Updating Device Firmware"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2911069"></a>Updating Device Firmware</h2></div></div></div><p>
+ </p></div></div><div class="section" title="Updating Device Firmware"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3014288"></a>Updating Device Firmware</h2></div></div></div><p>
The big conceptual thing to realize is that you have to use a
TeleDongle as a programmer to update a TeleMetrum, and vice versa.
Due to limited memory resources in the cc1111, we don't support
version from <a class="ulink" href="http://www.altusmetrum.org/AltOS/" target="_top">http://www.altusmetrum.org/AltOS/</a>.
</p><p>
We recommend updating TeleMetrum first, before updating TeleDongle.
- </p><div class="section" title="Updating TeleMetrum Firmware"><div class="titlepage"><div><div><h3 class="title"><a name="id2
883968"></a>Updating TeleMetrum Firmware</h3></div></div></div><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
+ </p><div class="section" title="Updating TeleMetrum Firmware"><div class="titlepage"><div><div><h3 class="title"><a name="id2
987187"></a>Updating TeleMetrum Firmware</h3></div></div></div><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
Find the 'programming cable' that you got as part of the starter
kit, that has a red 8-pin MicroMaTch connector on one end and a
red 4-pin MicroMaTch connector on the other end.
the version, etc.
</li><li class="listitem">
If something goes wrong, give it another try.
- </li></ol></div></div><div class="section" title="Updating TeleDongle Firmware"><div class="titlepage"><div><div><h3 class="title"><a name="id
2902772"></a>Updating TeleDongle Firmware</h3></div></div></div><p>
+ </li></ol></div></div><div class="section" title="Updating TeleDongle Firmware"><div class="titlepage"><div><div><h3 class="title"><a name="id
3005991"></a>Updating TeleDongle Firmware</h3></div></div></div><p>
Updating TeleDongle's firmware is just like updating TeleMetrum
firmware, but you switch which board is the programmer and which
is the programming target.
slightly to extract the connector. We used a locking connector on
TeleMetrum to help ensure that the cabling to companion boards
used in a rocket don't ever come loose accidentally in flight.
- </p></div></div></div><div class="chapter" title="Chapter 7. AltosUI"><div class="titlepage"><div><div><h2 class="title"><a name="id
2899642"></a>Chapter 7. AltosUI</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#id2899920">Packet Command Mode</a></span></dt><dt><span class="section"><a href="#id2904966">Monitor Flight</a></span></dt><dd><dl><dt><span class="section"><a href="#id2899984">Launch Pad</a></span></dt><dt><span class="section"><a href="#id2894635">Ascent</a></span></dt><dt><span class="section"><a href="#id2901484">Descent</a></span></dt><dt><span class="section"><a href="#id2909977">Landed</a></span></dt><dt><span class="section"><a href="#id2891310">Site Map</a></span></dt></dl></dd><dt><span class="section"><a href="#id2895594">Save Flight Data</a></span></dt><dt><span class="section"><a href="#id2915779">Replay Flight</a></span></dt><dt><span class="section"><a href="#id2902601">Graph Data</a></span></dt><dt><span class="section"><a href="#id2897602">Export Data</a></span></dt><dd><dl><dt><span class="section"><a href="#id2904804">Comma Separated Value Format</a></span></dt><dt><span class="section"><a href="#id2908365">Keyhole Markup Language (for Google Earth)</a></span></dt></dl></dd><dt><span class="section"><a href="#id2899625">Configure TeleMetrum</a></span></dt><dd><dl><dt><span class="section"><a href="#id2888483">Main Deploy Altitude</a></span></dt><dt><span class="section"><a href="#id2882164">Apogee Delay</a></span></dt><dt><span class="section"><a href="#id2911615">Radio Channel</a></span></dt><dt><span class="section"><a href="#id2893190">Radio Calibration</a></span></dt><dt><span class="section"><a href="#id2891069">Callsign</a></span></dt></dl></dd><dt><span class="section"><a href="#id2891229">Configure AltosUI</a></span></dt><dd><dl><dt><span class="section"><a href="#id2877534">Voice Settings</a></span></dt><dt><span class="section"><a href="#id2915842">Log Directory</a></span></dt><dt><span class="section"><a href="#id2882642">Callsign</a></span></dt></dl></dd><dt><span class="section"><a href="#id2902517">Flash Image</a></span></dt><dt><span class="section"><a href="#id2900288">Fire Igniter</a></span></dt></dl></div><p>
+ </p></div></div></div><div class="chapter" title="Chapter 7. AltosUI"><div class="titlepage"><div><div><h2 class="title"><a name="id
3002861"></a>Chapter 7. AltosUI</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#id3003139">Packet Command Mode</a></span></dt><dt><span class="section"><a href="#id3008185">Monitor Flight</a></span></dt><dd><dl><dt><span class="section"><a href="#id3003203">Launch Pad</a></span></dt><dt><span class="section"><a href="#id2997854">Ascent</a></span></dt><dt><span class="section"><a href="#id3004703">Descent</a></span></dt><dt><span class="section"><a href="#id3013196">Landed</a></span></dt><dt><span class="section"><a href="#id2994529">Site Map</a></span></dt></dl></dd><dt><span class="section"><a href="#id2998813">Save Flight Data</a></span></dt><dt><span class="section"><a href="#id3018998">Replay Flight</a></span></dt><dt><span class="section"><a href="#id3005821">Graph Data</a></span></dt><dt><span class="section"><a href="#id3000821">Export Data</a></span></dt><dd><dl><dt><span class="section"><a href="#id3008023">Comma Separated Value Format</a></span></dt><dt><span class="section"><a href="#id3011584">Keyhole Markup Language (for Google Earth)</a></span></dt></dl></dd><dt><span class="section"><a href="#id3002844">Configure TeleMetrum</a></span></dt><dd><dl><dt><span class="section"><a href="#id2991702">Main Deploy Altitude</a></span></dt><dt><span class="section"><a href="#id2985384">Apogee Delay</a></span></dt><dt><span class="section"><a href="#id3014834">Radio Channel</a></span></dt><dt><span class="section"><a href="#id2996409">Radio Calibration</a></span></dt><dt><span class="section"><a href="#id2994288">Callsign</a></span></dt></dl></dd><dt><span class="section"><a href="#id2994448">Configure AltosUI</a></span></dt><dd><dl><dt><span class="section"><a href="#id2980753">Voice Settings</a></span></dt><dt><span class="section"><a href="#id3019061">Log Directory</a></span></dt><dt><span class="section"><a href="#id2985861">Callsign</a></span></dt></dl></dd><dt><span class="section"><a href="#id3005736">Flash Image</a></span></dt><dt><span class="section"><a href="#id3003508">Fire Igniter</a></span></dt></dl></div><p>
The AltosUI program provides a graphical user interface for
interacting with the Altus Metrum product family, including
TeleMetrum and TeleDongle. AltosUI can monitor telemetry data,
buttons, one for each major activity in the system. This manual
is split into chapters, each of which documents one of the tasks
provided from the top-level toolbar.
- </p><div class="section" title="Packet Command Mode"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2899920"></a>Packet Command Mode</h2></div><div><h3 class="subtitle">Controlling TeleMetrum Over The Radio Link</h3></div></div></div><p>
- One of the unique features of the Altos Metrum environment is
+ </p><div class="section" title="Packet Command Mode"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3003139"></a>Packet Command Mode</h2></div><div><h3 class="subtitle">Controlling TeleMetrum Over The Radio Link</h3></div></div></div><p>
+ One of the unique features of the Altus Metrum environment is
the ability to create a two way command link between TeleDongle
and TeleMetrum using the digital radio transceivers built into
each device. This allows you to interact with TeleMetrum from
TeleMetrum transmit a packet while the green LED will light up
on TeleDongle while it is waiting to receive a packet from
TeleMetrum.
- </p></div><div class="section" title="Monitor Flight"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2904966"></a>Monitor Flight</h2></div><div><h3 class="subtitle">Receive, Record and Display Telemetry Data</h3></div></div></div><p>
+ </p></div><div class="section" title="Monitor Flight"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3008185"></a>Monitor Flight</h2></div><div><h3 class="subtitle">Receive, Record and Display Telemetry Data</h3></div></div></div><p>
Selecting this item brings up a dialog box listing all of the
connected TeleDongle devices. When you choose one of these,
AltosUI will create a window to display telemetry data as
data relevant to the current state of the flight. You can select
other tabs at any time. The final 'table' tab contains all of
the telemetry data in one place.
- </p><div class="section" title="Launch Pad"><div class="titlepage"><div><div><h3 class="title"><a name="id
2899984"></a>Launch Pad</h3></div></div></div><p>
+ </p><div class="section" title="Launch Pad"><div class="titlepage"><div><div><h3 class="title"><a name="id
3003203"></a>Launch Pad</h3></div></div></div><p>
The 'Launch Pad' tab shows information used to decide when the
rocket is ready for flight. The first elements include red/green
indicators, if any of these is red, you'll want to evaluate
and altitude, averaging many reported positions to improve the
accuracy of the fix.
</p><p>
- </p></div><div class="section" title="Ascent"><div class="titlepage"><div><div><h3 class="title"><a name="id2
894635"></a>Ascent</h3></div></div></div><p>
+ </p></div><div class="section" title="Ascent"><div class="titlepage"><div><div><h3 class="title"><a name="id2
997854"></a>Ascent</h3></div></div></div><p>
This tab is shown during Boost, Fast and Coast
phases. The information displayed here helps monitor the
rocket as it heads towards apogee.
Finally, the current igniter voltages are reported as in the
Launch Pad tab. This can help diagnose deployment failures
caused by wiring which comes loose under high acceleration.
- </p></div><div class="section" title="Descent"><div class="titlepage"><div><div><h3 class="title"><a name="id
2901484"></a>Descent</h3></div></div></div><p>
+ </p></div><div class="section" title="Descent"><div class="titlepage"><div><div><h3 class="title"><a name="id
3004703"></a>Descent</h3></div></div></div><p>
Once the rocket has reached apogee and (we hope) activated the
apogee charge, attention switches to tracking the rocket on
the way back to the ground, and for dual-deploy flights,
Finally, the igniter voltages are reported in this tab as
well, both to monitor the main charge as well as to see what
the status of the apogee charge is.
- </p></div><div class="section" title="Landed"><div class="titlepage"><div><div><h3 class="title"><a name="id
2909977"></a>Landed</h3></div></div></div><p>
+ </p></div><div class="section" title="Landed"><div class="titlepage"><div><div><h3 class="title"><a name="id
3013196"></a>Landed</h3></div></div></div><p>
Once the rocket is on the ground, attention switches to
recovery. While the radio signal is generally lost once the
rocket is on the ground, the last reported GPS position is
</p><p>
Finally, the maximum height, speed and acceleration reported
during the flight are displayed for your admiring observers.
- </p></div><div class="section" title="Site Map"><div class="titlepage"><div><div><h3 class="title"><a name="id2
891310"></a>Site Map</h3></div></div></div><p>
+ </p></div><div class="section" title="Site Map"><div class="titlepage"><div><div><h3 class="title"><a name="id2
994529"></a>Site Map</h3></div></div></div><p>
When the rocket gets a GPS fix, the Site Map tab will map
the rocket's position to make it easier for you to locate the
rocket, both while it is in the air, and when it has landed. The
and are cached for reuse. If map images cannot be downloaded,
the rocket's path will be traced on a dark grey background
instead.
- </p></div></div><div class="section" title="Save Flight Data"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2
895594"></a>Save Flight Data</h2></div></div></div><p>
+ </p></div></div><div class="section" title="Save Flight Data"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2
998813"></a>Save Flight Data</h2></div></div></div><p>
TeleMetrum records flight data to its internal flash memory.
This data is recorded at a much higher rate than the telemetry
system can handle, and is not subject to radio drop-outs. As
The filename for the data is computed automatically from the recorded
flight date, TeleMetrum serial number and flight number
information.
- </p></div><div class="section" title="Replay Flight"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2915779"></a>Replay Flight</h2></div></div></div><p>
+ </p></div><div class="section" title="Replay Flight"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3018998"></a>Replay Flight</h2></div></div></div><p>
Select this button and you are prompted to select a flight
record file, either a .telem file recording telemetry data or a
.eeprom file containing flight data saved from the TeleMetrum
Once a flight record is selected, the flight monitor interface
is displayed and the flight is re-enacted in real time. Check
the Monitor Flight chapter above to learn how this window operates.
- </p></div><div class="section" title="Graph Data"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2902601"></a>Graph Data</h2></div></div></div><p>
+ </p></div><div class="section" title="Graph Data"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3005821"></a>Graph Data</h2></div></div></div><p>
Select this button and you are prompted to select a flight
record file, either a .telem file recording telemetry data or a
.eeprom file containing flight data saved from the TeleMetrum
and will also often have significant amounts of data received
while the rocket was waiting on the pad. Use saved flight data
for graphing where possible.
- </p></div><div class="section" title="Export Data"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2897602"></a>Export Data</h2></div></div></div><p>
+ </p></div><div class="section" title="Export Data"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3000821"></a>Export Data</h2></div></div></div><p>
This tool takes the raw data files and makes them available for
external analysis. When you select this button, you are prompted to select a flight
data file (either .eeprom or .telem will do, remember that
data). Next, a second dialog appears which is used to select
where to write the resulting file. It has a selector to choose
between CSV and KML file formats.
- </p><div class="section" title="Comma Separated Value Format"><div class="titlepage"><div><div><h3 class="title"><a name="id
2904804"></a>Comma Separated Value Format</h3></div></div></div><p>
+ </p><div class="section" title="Comma Separated Value Format"><div class="titlepage"><div><div><h3 class="title"><a name="id
3008023"></a>Comma Separated Value Format</h3></div></div></div><p>
This is a text file containing the data in a form suitable for
import into a spreadsheet or other external data analysis
tool. The first few lines of the file contain the version and
the sensor values are converted to standard units, with the
barometric data reported in both pressure, altitude and
height above pad units.
- </p></div><div class="section" title="Keyhole Markup Language (for Google Earth)"><div class="titlepage"><div><div><h3 class="title"><a name="id
2908365"></a>Keyhole Markup Language (for Google Earth)</h3></div></div></div><p>
+ </p></div><div class="section" title="Keyhole Markup Language (for Google Earth)"><div class="titlepage"><div><div><h3 class="title"><a name="id
3011584"></a>Keyhole Markup Language (for Google Earth)</h3></div></div></div><p>
This is the format used by
Googleearth to provide an overlay within that
application. With this, you can use Googleearth to see the
whole flight path in 3D.
- </p></div></div><div class="section" title="Configure TeleMetrum"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2899625"></a>Configure TeleMetrum</h2></div></div></div><p>
+ </p></div></div><div class="section" title="Configure TeleMetrum"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3002844"></a>Configure TeleMetrum</h2></div></div></div><p>
Select this button and then select either a TeleMetrum or
TeleDongle Device from the list provided. Selecting a TeleDongle
device will use Packet Comamnd Mode to configure remote
lost.
</p></li></ul></div><p>
The rest of the dialog contains the parameters to be configured.
- </p><div class="section" title="Main Deploy Altitude"><div class="titlepage"><div><div><h3 class="title"><a name="id2
888483"></a>Main Deploy Altitude</h3></div></div></div><p>
+ </p><div class="section" title="Main Deploy Altitude"><div class="titlepage"><div><div><h3 class="title"><a name="id2
991702"></a>Main Deploy Altitude</h3></div></div></div><p>
This sets the altitude (above the recorded pad altitude) at
which the 'main' igniter will fire. The drop-down menu shows
some common values, but you can edit the text directly and
choose whatever you like. If the apogee charge fires below
this altitude, then the main charge will fire two seconds
after the apogee charge fires.
- </p></div><div class="section" title="Apogee Delay"><div class="titlepage"><div><div><h3 class="title"><a name="id2
882164"></a>Apogee Delay</h3></div></div></div><p>
+ </p></div><div class="section" title="Apogee Delay"><div class="titlepage"><div><div><h3 class="title"><a name="id2
985384"></a>Apogee Delay</h3></div></div></div><p>
When flying redundant electronics, it's often important to
ensure that multiple apogee charges don't fire at precisely
the same time as that can overpressurize the apogee deployment
Delay parameter tells the flight computer to fire the apogee
charge a certain number of seconds after apogee has been
detected.
- </p></div><div class="section" title="Radio Channel"><div class="titlepage"><div><div><h3 class="title"><a name="id
2911615"></a>Radio Channel</h3></div></div></div><p>
+ </p></div><div class="section" title="Radio Channel"><div class="titlepage"><div><div><h3 class="title"><a name="id
3014834"></a>Radio Channel</h3></div></div></div><p>
This configures which of the 10 radio channels to use for both
telemetry and packet command mode. Note that if you set this
value via packet command mode, you will have to reconfigure
the TeleDongle channel before you will be able to use packet
command mode again.
- </p></div><div class="section" title="Radio Calibration"><div class="titlepage"><div><div><h3 class="title"><a name="id2
893190"></a>Radio Calibration</h3></div></div></div><p>
+ </p></div><div class="section" title="Radio Calibration"><div class="titlepage"><div><div><h3 class="title"><a name="id2
996409"></a>Radio Calibration</h3></div></div></div><p>
The radios in every Altus Metrum device are calibrated at the
factory to ensure that they transmit and receive on the
specified frequency for each channel. You can adjust that
calibration by changing this value. To change the TeleDongle's
calibration, you must reprogram the unit completely.
- </p></div><div class="section" title="Callsign"><div class="titlepage"><div><div><h3 class="title"><a name="id2
891069"></a>Callsign</h3></div></div></div><p>
+ </p></div><div class="section" title="Callsign"><div class="titlepage"><div><div><h3 class="title"><a name="id2
994288"></a>Callsign</h3></div></div></div><p>
This sets the callsign included in each telemetry packet. Set this
as needed to conform to your local radio regulations.
- </p></div></div><div class="section" title="Configure AltosUI"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2
891229"></a>Configure AltosUI</h2></div></div></div><p>
+ </p></div></div><div class="section" title="Configure AltosUI"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2
994448"></a>Configure AltosUI</h2></div></div></div><p>
This button presents a dialog so that you can configure the AltosUI global settings.
- </p><div class="section" title="Voice Settings"><div class="titlepage"><div><div><h3 class="title"><a name="id2
877534"></a>Voice Settings</h3></div></div></div><p>
+ </p><div class="section" title="Voice Settings"><div class="titlepage"><div><div><h3 class="title"><a name="id2
980753"></a>Voice Settings</h3></div></div></div><p>
AltosUI provides voice annoucements during flight so that you
can keep your eyes on the sky and still get information about
the current flight status. However, sometimes you don't want
Test Voice—Plays a short message allowing you to verify
that the audio systme is working and the volume settings
are reasonable
- </p></li></ul></div></div><div class="section" title="Log Directory"><div class="titlepage"><div><div><h3 class="title"><a name="id
2915842"></a>Log Directory</h3></div></div></div><p>
+ </p></li></ul></div></div><div class="section" title="Log Directory"><div class="titlepage"><div><div><h3 class="title"><a name="id
3019061"></a>Log Directory</h3></div></div></div><p>
AltosUI logs all telemetry data and saves all TeleMetrum flash
data to this directory. This directory is also used as the
staring point when selecting data files for display or export.
Click on the directory name to bring up a directory choosing
dialog, select a new directory and click 'Select Directory' to
change where AltosUI reads and writes data files.
- </p></div><div class="section" title="Callsign"><div class="titlepage"><div><div><h3 class="title"><a name="id2
882642"></a>Callsign</h3></div></div></div><p>
+ </p></div><div class="section" title="Callsign"><div class="titlepage"><div><div><h3 class="title"><a name="id2
985861"></a>Callsign</h3></div></div></div><p>
This value is used in command packet mode and is transmitted
in each packet sent from TeleDongle and received from
TeleMetrum. It is not used in telemetry mode as that transmits
packets only from TeleMetrum to TeleDongle. Configure this
with the AltosUI operators callsign as needed to comply with
your local radio regulations.
- </p></div></div><div class="section" title="Flash Image"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2902517"></a>Flash Image</h2></div></div></div><p>
+ </p></div></div><div class="section" title="Flash Image"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3005736"></a>Flash Image</h2></div></div></div><p>
This reprograms any Altus Metrum device by using a TeleMetrum or
TeleDongle as a programming dongle. Please read the directions
for connecting the programming cable in the main TeleMetrum
will have to unplug it and then plug it back in for the USB
connection to reset so that you can communicate with the device
again.
- </p></div><div class="section" title="Fire Igniter"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2900288"></a>Fire Igniter</h2></div></div></div><p>
+ </p></div><div class="section" title="Fire Igniter"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3003508"></a>Fire Igniter</h2></div></div></div><p>
This activates the igniter circuits in TeleMetrum to help test
recovery systems deployment. Because this command can operate
over the Packet Command Link, you can prepare the rocket as
you have 10 seconds to press the 'Fire' button or the system
will deactivate, at which point you start over again at
selecting the desired igniter.
- </p></div></div><div class="chapter" title="Chapter 8. Using Altus Metrum Products"><div class="titlepage"><div><div><h2 class="title"><a name="id
2911085"></a>Chapter 8. Using Altus Metrum Products</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#id2898191">Being Legal</a></span></dt><dt><span class="section"><a href="#id2913004">In the Rocket</a></span></dt><dt><span class="section"><a href="#id2900884">On the Ground</a></span></dt><dt><span class="section"><a href="#id2902857">Data Analysis</a></span></dt><dt><span class="section"><a href="#id2900597">Future Plans</a></span></dt></dl></div><div class="section" title="Being Legal"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2898191"></a>Being Legal</h2></div></div></div><p>
+ </p></div></div><div class="chapter" title="Chapter 8. Using Altus Metrum Products"><div class="titlepage"><div><div><h2 class="title"><a name="id
3014304"></a>Chapter 8. Using Altus Metrum Products</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="section"><a href="#id3001410">Being Legal</a></span></dt><dt><span class="section"><a href="#id3016224">In the Rocket</a></span></dt><dt><span class="section"><a href="#id3004104">On the Ground</a></span></dt><dt><span class="section"><a href="#id3006076">Data Analysis</a></span></dt><dt><span class="section"><a href="#id3003816">Future Plans</a></span></dt></dl></div><div class="section" title="Being Legal"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id3001410"></a>Being Legal</h2></div></div></div><p>
First off, in the US, you need an <a class="ulink" href="http://www.altusmetrum.org/Radio/" target="_top">amateur radio license</a> or
other authorization to legally operate the radio transmitters that are part
of our products.
- </p></div><div class="section" title="In the Rocket"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2913004"></a>In the Rocket</h2></div></div></div><p>
+ </p></div><div class="section" title="In the Rocket"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3016224"></a>In the Rocket</h2></div></div></div><p>
In the rocket itself, you just need a <a class="ulink" href="http://www.altusmetrum.org/TeleMetrum/" target="_top">TeleMetrum</a> board and
a LiPo rechargeable battery. An 860mAh battery weighs less than a 9V
alkaline battery, and will run a <a class="ulink" href="http://www.altusmetrum.org/TeleMetrum/" target="_top">TeleMetrum</a> for hours.
which is opaque to RF signals, you may choose to have an SMA connector
installed so that you can run a coaxial cable to an antenna mounted
elsewhere in the rocket.
- </p></div><div class="section" title="On the Ground"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2900884"></a>On the Ground</h2></div></div></div><p>
+ </p></div><div class="section" title="On the Ground"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3004104"></a>On the Ground</h2></div></div></div><p>
To receive the data stream from the rocket, you need an antenna and short
feedline connected to one of our <a class="ulink" href="http://www.altusmetrum.org/TeleDongle/" target="_top">TeleDongle</a> units. The
TeleDongle in turn plugs directly into the USB port on a notebook
</a>
The 440-3 and 440-5 are both good choices for finding a
TeleMetrum-equipped rocket when used with a suitable 70cm HT.
- </p></div><div class="section" title="Data Analysis"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2902857"></a>Data Analysis</h2></div></div></div><p>
+ </p></div><div class="section" title="Data Analysis"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3006076"></a>Data Analysis</h2></div></div></div><p>
Our software makes it easy to log the data from each flight, both the
telemetry received over the RF link during the flight itself, and the more
complete data log recorded in the DataFlash memory on the TeleMetrum
Our ultimate goal is to emit a set of files for each flight that can be
published as a web page per flight, or just viewed on your local disk with
a web browser.
- </p></div><div class="section" title="Future Plans"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
2900597"></a>Future Plans</h2></div></div></div><p>
+ </p></div><div class="section" title="Future Plans"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id
3003816"></a>Future Plans</h2></div></div></div><p>
In the future, we intend to offer "companion boards" for the rocket that will
plug in to TeleMetrum to collect additional data, provide more pyro channels,
and so forth. A reference design for a companion board will be documented
projects / web / altusmetrum / commitdiff